Communication

My boyfriend and I have been dating for almost two years. We were and still are very close and have been through a lot together. We used to keep in touch very frequently. However, recently within the last 7 months or so he does not try to contact me. He will go up to around 8 hours or so without contacting me(when I know he isn't doing anything too serious, just around his house with his family or friends)right before we are trying to figure out our plans. I don't know if I am just overreacting but it is very annoying and frustrating lol. Also, I always ask him how he is, what he did that day, etc. but he never asks what I am up to. Thoughts?